Vortex 313ZK-42 CAT5 Black Aluminum 42-Tooth Rear Sprocket

The Vortex 313ZK-42 is a 42-tooth CAT5 aluminum rear sprocket finished in a striking black anodized coating with contrasting silver machined accents. Engineered for performance-focused riders, this sprocket is crafted from a specially formulated aluminum alloy and 100% CNC manufactured in the USA to exacting tolerances.

Key Features:

• CAT5 Lightweight Aluminum Construction – Reduces rotating mass for improved throttle response and acceleration
• Black Anodized Finish – Anodized first, then CNC machined to produce a bold black look with bright silver highlights on the teeth and sweeps
• Vortex Patented Tooth Design – Unique saber-tooth geometry increases sprocket longevity and promotes smooth chain engagement
• 100% CNC Manufactured in the USA – Precision machined to ensure concentricity and exact fit
• Specially Formulated Alloy – Material spec developed by Vortex for the optimal balance of strength and weight
• 42 Teeth – Bolt-on rear sprocket replacement sized for compatible motorcycle applications

Vortex Racing has been manufacturing top-quality motorcycle racing components since 1995, with products trusted by professional race teams and champions worldwide. The 313ZK-42 is an ideal upgrade or direct replacement for riders seeking reduced drivetrain weight and a premium aesthetic.